The Rich Solar ALPHA 3 12V 300Ah LiFePO4 Battery is a lithium iron phosphate battery for compatible RV, cabin, camping, and off-grid electrical storage systems. Identified by SKU RS-B123S, it provides 3,840Wh nominal energy at 12.8V with a 300Ah nominal capacity and 300A maximum charging and continuous discharge ratings. This ALPHA configuration includes a 100W internal heating function for supported low-temperature charging conditions and built-in Bluetooth for real-time battery-status monitoring through compatible mobile devices. Rich Solar lists an IP65 waterproof and dustproof rating, a UL94 V-0 flame-retardant plastic shell, and an integrated battery management system with documented protection functions. Rich Solar lists the ALPHA Series under a five-year prorated limited warranty, subject to its complete warranty terms and proper installation and operation requirements.
The ALPHA 3 provides 300Ah nominal capacity with 3,840Wh nominal energy for properly designed 12V electrical systems. Its documented 300A maximum charging and continuous discharge ratings require compatible charging equipment, wiring, overcurrent protection, inverter loads, and connected-load planning.
The internal heater is controlled through the battery management system and is rated at 100W. The official manual states that the heater operates only when charging current is present and the internally detected battery temperature meets the documented low-temperature activation condition.
Built-in Bluetooth enables compatible mobile-device monitoring of supported battery status information in real time. This supports more convenient battery-status checks for compatible RV, cabin, camping, and off-grid electrical systems.
The official specification sheet identifies IP65 waterproof and dustproof protection, a UL94 V-0 rated plastic shell, and an integrated battery management system. The manual directs users to mount the battery with terminals facing upward, use qualified electrical connection practices, and connect no more than four matching batteries in parallel.
With 3,840Wh nominal energy and a 20.5" × 10.6" × 8.7" footprint, the ALPHA 3 provides high-capacity lithium storage for compatible mobile and off-grid system layouts.
Internal heating and Bluetooth monitoring add practical ownership value, while final system fit should be confirmed around charging equipment, cable sizing, load requirements, temperature conditions, and installation planning.
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Contact Us for a Quote| Brand | Rich Solar |
| Series | ALPHA Series |
| Model | ALPHA 3 |
| SKU / Model Number | RS-B123S |
| Product Type | Lithium iron phosphate (LiFePO4) battery |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah |
| Nominal Energy | 3,840Wh |
| Charging Voltage | 14.4V |
| Discharge Cutoff Voltage | 10.0V |
| Standard Charging Current | 150A |
| Maximum Charging Current | 300A |
| Standard Discharge Current | 150A |
| Maximum Continuous Discharge Current | 300A |
| Battery Management System | Integrated BMS with documented overcharge, over-discharge, over-current, short-circuit, charge/discharge temperature-protection, and balancing functions |
| Heating Function | Internal heater; 100W heating power |
| Heating Activation | Requires charging input and low internal battery temperature according to manufacturer documentation |
| Communication Mode | Bluetooth |
| Ingress Protection | IP65 waterproof and dustproof rating listed by Rich Solar |
| Shell Material | Plastic shell; UL94 V-0 flame-retardant rating listed by Rich Solar |
| Charging Temperature Range | 32°F to 131°F, with temperature- and state-of-charge-dependent current limits listed by Rich Solar |
| Discharge Temperature Range | -4°F to 140°F |
| Dimensions | 20.5" × 10.6" × 8.7" |
| Weight | Approximately 71.7 lb / 32.5 kg |
| Parallel Configuration | Maximum of four batteries in parallel; do not mix battery brands, models, or specifications, and use equal-length matching parallel cables with adequately rated busbars according to the manual |
| Electrical Connection | Electrical power-supply connection must be completed by a qualified electrician according to the manual |
| Mounting Orientation | Install with positive and negative terminals facing upward; do not wall-mount without the required mounting bracket, according to the manual |
| Charging Limitations | Charging current must remain below the maximum charging current; charging voltage should remain below 14.4V; charge only within the specified temperature range; reverse charging is prohibited |
| Included Components | Battery; two SUS304 M8×12 screws; two SUS304 M8×16 screws; two SUS304 M8×20 screws; ALPHA 3 manual |
| Warranty | 5-year prorated limited warranty for ALPHA Series; year 1 provides full replacement coverage, with prorated replacement coverage in years 2–5, subject to Rich Solar warranty terms |
